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Red-crested Pochard
The red-crested pochard (''Netta rufina'') is a large diving duck. The scientific name is derived from Greek ''Netta'' "duck", and Latin ''rufina'', "golden-red" (from ''rufus'', "ruddy"). Its breeding habitat is lowland marshes and lakes in southern Europe and it extends from the steppe and semi-desert areas on the Black Sea to Central Asia and Mongolia, wintering in the Indian Subcontinent and Africa. It is somewhat migratory, and northern birds winter further south into north Africa. The adult male is unmistakable. It has a rounded orange head, red bill and black breast. The flanks are white, the back brown, and the tail black. The female is mainly a pale brown, with a darker back and crown and a whitish face. Eclipse males are like females but with red bills. They are gregarious birds, forming large flocks in winter, often mixed with other diving ducks, such as common pochards. They feed mainly by diving or dabbling. They eat aquatic plants, and typically upend for food mo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peter Simon Pallas
Peter Simon Pallas Fellow of the Royal Society, FRS FRSE (22 September 1741 – 8 September 1811) was a Prussia, Prussian zoologist, botanist, Ethnography, ethnographer, Exploration, explorer, Geography, geographer, Geology, geologist, Natural history, natural historian, and Taxonomy, taxonomist. He studied natural sciences at various universities in Germany in the early modern period, early modern Germany and worked primarily in the Russian Empire between 1767 and 1810. Life and work Peter Simon Pallas was born in Berlin, Kingdom of Prussia, the son of Professor of Surgery Simon Pallas. He studied with private tutors and took an interest in natural history, later attending the University of Halle and the University of Göttingen. In 1760, he moved to the University of Leiden and passed his doctor's degree at the age of 19. Pallas travelled throughout the Dutch Republic and to London, improving his medical and surgical knowledge. He then settled at The Hague, and his new ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
England
England is a Countries of the United Kingdom, country that is part of the United Kingdom. It is located on the island of Great Britain, of which it covers about 62%, and List of islands of England, more than 100 smaller adjacent islands. It shares Anglo-Scottish border, a land border with Scotland to the north and England–Wales border, another land border with Wales to the west, and is otherwise surrounded by the North Sea to the east, the English Channel to the south, the Celtic Sea to the south-west, and the Irish Sea to the west. Continental Europe lies to the south-east, and Ireland to the west. At the 2021 United Kingdom census, 2021 census, the population was 56,490,048. London is both List of urban areas in the United Kingdom, the largest city and the Capital city, capital. The area now called England was first inhabited by modern humans during the Upper Paleolithic. It takes its name from the Angles (tribe), Angles, a Germanic peoples, Germanic tribe who settled du ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wintering Birds Of South Asia
Winter is the coldest and darkest season of the year in temperate and polar climates. It occurs after autumn and before spring. The tilt of Earth's axis causes seasons; winter occurs when a hemisphere is oriented away from the Sun. Different cultures define different dates as the start of winter, and some use a definition based on weather. When it is winter in the Northern Hemisphere, it is summer in the Southern Hemisphere, and vice versa. Winter typically brings precipitation that, depending on a region's climate, is mainly rain or snow. The moment of winter solstice is when the Sun's elevation with respect to the North or South Pole is at its most negative value; that is, the Sun is at its farthest below the horizon as measured from the pole. The day on which this occurs has the shortest day and the longest night, with day length increasing and night length decreasing as the season progresses after the solstice. The earliest sunset and latest sunrise dates outside the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Birds Of Central Asia
Birds are a group of warm-blooded vertebrates constituting the class Aves (), characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton. Birds live worldwide and range in size from the bee hummingbird to the common ostrich. There are over 11,000 living species and they are split into 44 orders. More than half are passerine or "perching" birds. Birds have wings whose development varies according to species; the only known groups without wings are the extinct moa and elephant birds. Wings, which are modified forelimbs, gave birds the ability to fly, although further evolution has led to the loss of flight in some birds, including ratites, penguins, and diverse endemic island species. The digestive and respiratory systems of birds are also uniquely adapted for flight. Some bird species of aquatic environments, particularly seabirds and some waterbirds, have furth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Birds Of Europe
More than 900 species of birds have been observed in Europe. The avifauna of Europe is broadly similar to that of Asia north of the Himalayas and North Africa, both of which also belong to the Palearctic realm. There are also many groups shared with North America. On the other hand, many groups characteristic of the Afrotropical and Indomalayan realms are entirely absent from Europe, including jacanas, darters, trogons, hornbills, honeyguides, barbets (families Lybiidae in Africa and Megalaimidae in Asia), parrots, pittas, cuckooshrikes, broadbills (families Calyptomenidae and Eurylaimidae), drongos, monarch flycatchers, white-eyes, and estrildid finches (although parrots and estrildid finches have been introduced to Europe by humans). Two species that occurred in the European region until recently (post 1800) — the great auk and the Canary Islands oystercatcher — are now globally extinct, while one additional species — the slender-billed curlew — may also ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Netta
''Netta'' is a genus of diving ducks. The name is derived from Greek ''Netta'' "duck". Unlike other diving ducks, the ''Netta'' species are reluctant to dive, and feed more like dabbling ducks. These are gregarious ducks, mainly found on fresh water. They are strong fliers; their broad, blunt-tipped wings require faster wing-beats than those of many ducks and they take off with some difficulty. They do not walk as well on land as the dabbling ducks because their legs tend to be placed further back on their bodies to help propel them when underwater. The probably extinct pink-headed duck The pink-headed duck (''Rhodonessa caryophyllacea'') is a large diving duck that was once found in parts of the Indo-Gangetic Plain, Gangetic plains of India, Nepal, parts of Maharashtra, Bangladesh and in the riverine swamps of Myanmar but has b ..., previously listed as ''Rhodonessa caryophyllacea'', has recently been shown by phylogenetic analysis to be closely related to the red-crested ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AEWA
The Agreement on the Conservation of African-Eurasian Migratory Waterbirds, or African-Eurasian Waterbird Agreement (AEWA), is an independent international treaty developed under the auspices of the United Nations Environment Programme's Convention on Migratory Species. Background The Agreement on the Conservation of African-Eurasian Migratory Waterbirds was drafted on 19 June 1995 in The Hague, Netherlands, in order to coordinate efforts to conserve bird species migrating between European and African nations. Description The AEWA is an independent treaty under the auspices of the Convention on Migratory Species, of the United Nations Environment Programme. The agreement focuses on bird species that depend on wetlands for at least part of their lifecycle and cross international borders in their migration patterns. As of 2023 it covered 255 species. As of July 2023, its scope covered territories in 119 Range States stretching from the Arctic to South Africa, encompassing the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Northamptonshire
Northamptonshire ( ; abbreviated Northants.) is a Ceremonial counties of England, ceremonial county in the East Midlands of England. It is bordered by Leicestershire, Rutland and Lincolnshire to the north, Cambridgeshire to the east, Bedfordshire, Buckinghamshire and Oxfordshire to the south and Warwickshire to the west. Northampton is the largest settlement and the county town. The county has an area of and a population of 747,622. The latter is concentrated in the centre of the county, which contains the county's largest towns: Northampton (249,093), Corby (75,571), Kettering (63,150), and Wellingborough (56,564). The northeast and southwest are rural. The county contains two local government Non-metropolitan district, districts, North Northamptonshire and West Northamptonshire, which are both Unitary authority, unitary authority areas. The Historic counties of England, historic county included the Soke of Peterborough. The county is characterised by low, undulating hills, p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oxfordshire
Oxfordshire ( ; abbreviated ''Oxon'') is a ceremonial county in South East England. The county is bordered by Northamptonshire and Warwickshire to the north, Buckinghamshire to the east, Berkshire to the south, and Wiltshire and Gloucestershire to the west. The city of Oxford is the largest settlement and county town. The county is largely rural, with an area of and a population of 691,667. After Oxford (162,100), the largest settlements are Banbury (54,355) and Abingdon-on-Thames (37,931). For local government purposes Oxfordshire is a non-metropolitan county with five districts. The part of the county south of the River Thames, largely corresponding to the Vale of White Horse district, was historically part of Berkshire. The lowlands in the centre of the county are crossed by the River Thames and its tributaries, the valleys of which are separated by low hills. The south contains parts of the Berkshire Downs and Chiltern Hills, and the north-west includes part o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gloucestershire
Gloucestershire ( , ; abbreviated Glos.) is a Ceremonial counties of England, ceremonial county in South West England. It is bordered by Herefordshire to the north-west, Worcestershire to the north, Warwickshire to the north-east, Oxfordshire to the east, Wiltshire to the south, Bristol and Somerset to the south-west, and the Wales, Welsh county of Monmouthshire to the west. The city of Gloucester is the largest settlement and the county town. The county is predominantly rural, with an area of and a population of 916,212. After Gloucester (118,555) the largest distinct settlements are Cheltenham (115,940), Stroud (26,080), and Yate (28,350). In the south of the county, the areas around Filton and Kingswood, South Gloucestershire, Kingswood are densely populated and part of Bristol Built-up Area, Bristol built-up area. For Local government in England, local government purposes Gloucestershire comprises a non-metropolitan county, with six districts, and the Unitary authorities ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Introduced Species
An introduced species, alien species, exotic species, adventive species, immigrant species, foreign species, non-indigenous species, or non-native species is a species living outside its native distributional range, but which has arrived there by human activity, directly or indirectly, and either deliberately or accidentally. Non-native species can have various effects on the local ecosystem. Introduced species that become established and spread beyond the place of introduction are considered naturalized. The process of human-caused introduction is distinguished from biological colonization, in which species spread to new areas through "natural" (non-human) means such as storms and rafting. The Latin expression neobiota captures the characteristic that these species are ''new'' biota to their environment in terms of established biological network (e.g. food web) relationships. Neobiota can further be divided into neozoa (also: neozoons, sing. neozoon, i.e. animals) and ne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Netta Rufina MWNH 1006
''Netta'' is a genus of diving ducks. The name is derived from Greek ''Netta'' "duck". Unlike other diving ducks, the ''Netta'' species are reluctant to dive, and feed more like dabbling ducks. These are gregarious ducks, mainly found on fresh water. They are strong fliers; their broad, blunt-tipped wings require faster wing-beats than those of many ducks and they take off with some difficulty. They do not walk as well on land as the dabbling ducks because their legs tend to be placed further back on their bodies to help propel them when underwater. The probably extinct pink-headed duck, previously listed as ''Rhodonessa caryophyllacea'', has recently been shown by phylogenetic analysis to be closely related to the red-crested pochard The red-crested pochard (''Netta rufina'') is a large diving duck. The scientific name is derived from Greek ''Netta'' "duck", and Latin ''rufina'', "golden-red" (from ''rufus'', "ruddy"). Its breeding habitat is lowland marshes and lakes in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
